144285607 has 4 divisors (see below), whose sum is σ = 148185256. Its totient is φ = 140385960.

The previous prime is 144285599. The next prime is 144285611. The reversal of 144285607 is 706582441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 706582441 = 17 ⋅41563673.

It is a cyclic number.

It is not a de Polignac number, because 144285607 - 2³ = 144285599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 3899611 = 144285607 / (1 + 4 + 4 + 2 + 8 + 5 + 6 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144285697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949769 + ... + 1949842.

It is an arithmetic number, because the mean of its divisors is an integer number (37046314).

Almost surely, 2^144285607 is an apocalyptic number.

144285607 is a deficient number, since it is larger than the sum of its proper divisors (3899649).

144285607 is an equidigital number, since it uses as much as digits as its factorization.

144285607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899648.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 144285607 is about 12011.8943968052. The cubic root of 144285607 is about 524.4945787384.

The spelling of 144285607 in words is "one hundred forty-four million, two hundred eighty-five thousand, six hundred seven".